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VERSION:2.0
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PRODID:UW-Madison-Physics-Events
BEGIN:VEVENT
SEQUENCE:0
UID:UW-Physics-Event-5224
DTSTART:20191024T203000Z
DTEND:20191024T220000Z
DTSTAMP:20260415T061031Z
LAST-MODIFIED:20191004T152009Z
LOCATION:4421 Sterling Hall\, Coffee and cookies 3:30 PM\, Talk begins
  3:45 PM
SUMMARY:Open Cluster Variables: Essential Astrophysical Probes\, Astro
 nomy Colloquium\, Melinda Soares\, Princeton University
DESCRIPTION:A layer of complexity is missing from the prevailing stand
 ard stellar evolution model. Peculiar stars\, particularly those found
  in coeval\, isometallic systems like open clusters\, play a critical 
 role in its refinement. The blending of stellar light in densely popul
 ated clusters poses a formidable challenge in the generation of high-p
 recision light curves. To mitigate such concerns\, our team produced a
 n image subtraction pipeline that reveals a diverse population of peri
 odic variables in the K2 dataset. This technique has unveiled new cand
 idate exoplanets\, eclipsing binaries\, rapidly rotating stars\, and p
 ulsating variables. Moreover\, we detect sources that are not revealed
  by other methods\, indicating that the image subtraction technique is
  required to fully exploit cluster fields. I discuss the potential of 
 utilizing cluster variables to probe critical open questions in stella
 r astrophysics.
URL:https://www.physics.wisc.edu/events/?id=5224
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